Aaron Williams is senior adviser — emeritus, for international development and government relations at RTI International. Previously at RTI, he was executive vice president of the International Development Group. He served as the 18th director of the U.S. Peace Corps from 2009 to 2012 under former President Barack Obama. Before joining RTI, Williams served as a senior official at the U.S. Agency for International Development. Williams is also an adjunct professor of health policy and management at the University of North Carolina at Chapel Hill’s school of global public health.